I'm cycling my eclipse six with several turbo snails, a camel shrimp, and 3 lbs of live rocks. Lighting is a Power-Glo 8 watts bulb. The water temp reaches up to 88 at high point of the day without the heater turned on. Is there anyway to reduce the temperature?

Cycling a tank with inverts and it getting up to 88 degrees is a disaster waiting to happen, IMO remove the inverts and finish out the cycle with a raw shrimp and as far as the temp goes is it in a window or a non air conditioned room? 88 degrees is very high and if it's cooling down at night thats a massive temp swing for a 24 hour period. Need more info on the tank set up but a fan would certainly help but I dont think it's going to solve the problem.

the temperature is still around 88 with the lights turned off for 24 hours...is this normal during the cycling period?

What is the temperature of the room?

If the water is significantly warmer than the temperature of the room, something must be adding a large amount of heat to the water. If the lights are off, I would think it would take quite a bit to heat the water to 16 degrees above normal room temperature. What do you have that is adding that much heat???